New to me 1693 Cat - looking for upgrades

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by 1972RedNeck, Aug 20, 2018.

  1. haycarter

    haycarter Road Train Member

    1,920
    5,317
    Jun 9, 2012
    Australia
    0
    [​IMG]


    ^^^^^^^^^^^^^^^^^^
    Plus 1 to this..

    I'd personally leave It as Era/Period correct as possible..!! They're only ever "original" Once..

    But hey,, Your truck Your Money Do whatever Floats your Boat..

    Have Fun..
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. 1972RedNeck

    1972RedNeck Light Load Member

    53
    66
    Aug 20, 2018
    0
    That style guard just doesn't turn my crank - too bulky and square to "flow" with the lines of the truck.

    As for being original, I won't be doing anything that won't easily be reversible. If it had a 5+4 or the like, sure, I would be all for keeping it but really what's the difference between an RTO12513 and an RTLO14913 or even an 8LL?

    Yes, the turbo will be different, but that could easily be changed back if so desired.

    JWAC will be period correct and could have been had on the assembly line.
     
    haycarter Thanks this.
  4. 1972RedNeck

    1972RedNeck Light Load Member

    53
    66
    Aug 20, 2018
    0
    Finally getting a little movement out of the exhaust brake by tapping it with a hammer. Just need more patience and loose juice.

    Got the air tank drain working and proceeded to blow a lot of oil on the ground - air compressor makes some noise as well. Should I get a reman compressor right from Cat or are rebuild kits available to do it myself?
     
  5. wore out

    wore out Numbered Classic

    15,644
    189,021
    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
    0
    I bet CAT don't have the tool group any more. I also bet if they did they wouldn't bump it 1 I oda above what the serial says or data plate which ever is readable.


    Find ya a retired marine mechanic tell him you got a D343 needs adjusting. They used the crap outta them in dredges and boats.
     
    Hammer166, shogun, SAR and 3 others Thank this.
  6. stranger

    stranger Road Train Member

    3,640
    4,959
    Oct 10, 2006
    NC
    0
    Didn't the first 3406A come out as 360 hp, then the next year go to 380? I could be wrong. Nothing, and I mean nothing, sounded as good as a 1693 idling, then taking off down the road. I could sit and listen to one for hours.

    The 3406A sounded good idling also, but its unique sound was the intense rattling when taking off and when changing gears until the turbo caught up with the fuel. Great sound. The 3406A was a dog off the line. A 350 Cummins could clean your clock from a stop light, but get that CAT in high and hit a hill or two, and the Cummins saw nothing but tail lights for a few minutes. By then you were out of sight.
     
    shogun, AModelCat, Oxbow and 1 other person Thank this.
  7. Oxbow

    Oxbow Road Train Member

    12,675
    130,729
    Nov 24, 2015
    Idaho
    0
    I believe that the first A models were pre-combustion, and the later ones were DITA. I used to own an 83 that was DITA and 400 HP.
     
    Ruthless, SAR, stranger and 2 others Thank this.
  8. AModelCat

    AModelCat Road Train Member

    29,032
    156,635
    Jul 7, 2015
    Canuckistan
    0
    Mine shows 375 on the valve cover sticker ('79 model year). I believe it was originally PCTA but converted to DITA. Still has glowplug switch and injection pump is tagged "Prechamber 3406"
     
    Ruthless, SAR, wore out and 1 other person Thank this.
  9. 1972RedNeck

    1972RedNeck Light Load Member

    53
    66
    Aug 20, 2018
    0
    Yep, struck out with Cat, (not that they knew what they were talking about, said I would need different injectors, pre-cups, pistons, and turbo - sounded like they wanted to convert it to DI).

    Not a whole lot of marine mechanics in Montana. Know any old timers that I could call?

    Will probably just end up setting it myself by the pyro and boost - what is the max sustained EGT's (post turbo) that I want to see? 900°? 1000°?
     
    Oxbow and wore out Thank this.
  10. AModelCat

    AModelCat Road Train Member

    29,032
    156,635
    Jul 7, 2015
    Canuckistan
    0
    I'd imagine you'd just have to find your current arrangement number and the arrangement number of what you want to build and compare the parts lists to see what needs to be changed to juice it up.
     
    Oxbow Thanks this.
  11. wore out

    wore out Numbered Classic

    15,644
    189,021
    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
    0
    I can walk you through it if you don't find any one. Not sure how familiar you are with those but setting the valves is sure different. The adjustments are in the lifters with locks like self adjusting shoes. You turn them with a small screwdriver. Any way they wear out and quit holding.


    If your in Montana @Oxbow was telling us he had a good CAT shop up there I believe. Hopefully not the same bunch you been too. Some them ol pipeline mechanics can make her gin too
     
    MACK E-6, SAR, 1972RedNeck and 2 others Thank this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.